December weather forecastCreston, WY
December
Weather in December
December, the first month of the winter in Creston, is also a subzero cold month, with an average temperature ranging between min 13.5°F (-10.3°C) and max 26.4°F (-3.1°C).Temperature
December is the month that records the lowest temperatures, with averages ranging from a high of 26.4°F (-3.1°C) to a low of 13.5°F (-10.3°C).Humidity
The average relative humidity in December is 81%.Rainfall
In December, the rain falls for 4.6 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 81.8 rainfall days, and 9.76" (248mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Creston, Wyoming, in December, snow falls for 13.6 days, with typically accumulated 4.76" (121mm) of snow. Throughout the year, there are 80.7 snowfall days, and 33.5" (851mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:19 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:50 pm MST.
Sunshine
December has the least sunshine of the year, with an average of 5.7h of sunshine.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Creston, WY
- Average high temperature in December: 26.4°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is December (26.4°F).
- Average low temperature in December: 13.5°F
The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Creston, WY
- Average pressure in December: 30.2"Hg
The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Creston, WY
- Average wind speed in December: 12.6mph
The windiest month (with the highest average wind speed) is November (13.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.5mph).
Average humidity in December
Creston, WY
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are July and August (35%).
Average rainfall in December
Creston, WY
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is April (1.42").
The driest month (with the least rainfall) is August (0.35").
Average rainfall days in December
Creston, WY
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (11.7 days).
The month with the least rainy days is November (3.3 days).
Average snowfall in December
Creston, WY
- Average snowfall in December: 4.76"
The month with the highest snowfall is April (5.75").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Creston, WY
- Average snowfall days in December: 13.6 days
The month with the highest number of snowfall days is February (14.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Creston, WY
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 5h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Creston, WY
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is June (21.1 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in December
Creston, WY
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Creston, WY
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 13).
Average visibility in December
Creston, WY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
